- RoomEngineering Center Annex-501-2
- Microwave engineering, RFIC, Active circuit, Antenna
- May 2001 : Texas A&M University, College Station, USA, Ph.D.
- March 2003 ~ Present : Professor, Department of Electronic Engineering, Hanyang University
- April 2001 ~ Feb. 2003 : MMIC designer, Triquint Semiconductor, USA
- March 1989 ~ Dec. 2000 : Senior researcher, Electronics and Telecommunications Research Institute (ETRI)